1995 GMC C3500 trans sound

1995 GMC C3500
67,000 MILES • V8 • 4WD • AUTOMATIC
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JOEFISH6178
  • MEMBER
  • 1 POST
When I let off the accelerator the trans makes a high pitch sound. Almost like it is having trouble downshifting. It only makes it when I slow down it shifts fine when I accelerate.
Feb 11, 2010 at 7:10 PM
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DR LOOT
  • CAR REPAIR CONTRIBUTOR
  • 2,311 POSTS
It may not be the transmission have you checked the oil? the sound may be coming from the differential amplifying its self through the driveline to the transmission you better check the oil in the rear end too.
Feb 17, 2010 at 10:29 PM
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